August weather forecast
Moreno Valley, CA

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Marina on Lake Perris State Park in Moreno Valley, California, with visible piers, luxury boats, and high hills
Marina on Lake Perris State Park in Moreno Valley, California, with visible piers, luxury boats, and high hills

Weather in August

August, the last month of the summer in Moreno Valley, is another tropical month, with an average temperature fluctuating between 90.7°F (32.6°C) and 64.8°F (18.2°C).

Temperature

With average high and low temperatures of 90.7°F (32.6°C) and 64.8°F (18.2°C) respectively, August is Moreno Valley's warmest month.

Heat index

Throughout August, the heat index is appraised at a tropical 93.2°F (34°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

August is the least humid month in Moreno Valley, California, with an average relative humidity of 42%.

Rainfall

In Moreno Valley, in August, it is raining for 1.8 days, with typically 0.12" (3mm) of accumulated precipitation. Throughout the year, there are 52.6 rainfall days, and 7.52" (191mm) of precipitation is accumulated.

Snowfall

January, March through December are months without snowfall.

Daylight

The average length of the day in August is 13h and 23min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:49 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:15 pm PDT.

Sunshine

The average sunshine in August is 12h.

UV index

In Moreno Valley, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What part of the year is the hottest in Moreno Valley?

In Moreno Valley, California, the average highest temperatures are observed in August, with a high of 90.7°F (32.6°C) and a low of 64.8°F (18.2°C).

How hot is it in Moreno Valley in August?

Moreno Valley in August has an average high-temperature of 90.7°F (32.6°C) and an average low-temperature of 64.8°F (18.2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 93.2°F (34°C).

What is the least humid month in Moreno Valley?

With an average relative humidity of 42%, August is the least humid month in Moreno Valley, California.

What is the average humidity in August in Moreno Valley?

In August, the average relative humidity in Moreno Valley, California, is 42%.

How many days does it rain in August in Moreno Valley?

In Moreno Valley, California, during August, the rain falls for 1.8 days and regularly aggregates up to 0.12" (3mm) of precipitation.

When it does not snow in Moreno Valley?

In Moreno Valley, California, snow does not fall in January, March through December.

What is the average length of the day in August in Moreno Valley?

The average day length in August in Moreno Valley, California, is 13h and 23min.

What time are sunrise and sunset in August in Moreno Valley?

On the first day of August in Moreno Valley, sunrise is at 6:01 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:15 pm PDT.

How long on average sun shines in August in Moreno Valley?

In August, the average sunshine duration in Moreno Valley is 12h.

What is the UV index reading in August in Moreno Valley?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Moreno Valley, CA

Average temperature in August - Moreno Valley, CA
  • Average high temperature in August: 90.7°F

The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is December (60.8°F).

  • Average low temperature in August: 64.8°F

The month with the highest average low temperature is August (64.8°F).
The coldest months (with the lowest average low temperature) are February and December (43.5°F).

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Average pressure in August
Moreno Valley, CA

Average pressure in August - Moreno Valley, CA
  • Average pressure in August: 29.87"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in August
Moreno Valley, CA

Average wind speed in August - Moreno Valley, CA
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).

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Average humidity in August
Moreno Valley, CA

Average humidity in August - Moreno Valley, CA
  • Average humidity in August: 42%

The months with the highest relative humidity are February and May (56%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in August
Moreno Valley, CA

Average rainfall in August - Moreno Valley, CA
  • Average rainfall in August: 0.12"

The wettest month (with the highest rainfall) is February (1.61").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in August
Moreno Valley, CA

Average rainfall days in August - Moreno Valley, CA
  • Average rainfall days in August: 1.8 days

The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall in August
Moreno Valley, CA

Average snowfall in August - Moreno Valley, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Moreno Valley, CA

Average snowfall days in August - Moreno Valley, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in August /
Average sunshine in August
Moreno Valley, CA

Average daylight in August / Average sunshine in August - Moreno Valley, CA
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 12h and 0min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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Average sunshine days in August
Moreno Valley, CA

Average sunshine days in August - Moreno Valley, CA
  • Average sunshine days in August: 27.4 days

The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (20.3 days).

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Average UV index in August
Moreno Valley, CA

Average UV index in August - Moreno Valley, CA
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in August
Moreno Valley, CA

Average cloud cover in August - Moreno Valley, CA
  • Average cloud cover in August: 5

The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in August
Moreno Valley, CA

Average visibility in August - Moreno Valley, CA
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Moreno Valley, California, USA

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